render thread early preload optimizations

  1. preload eglContext when renderthread preload is called so setSurface
work is not waiting for this work during app launch crit path.
  2. Additionally queue GraphicBufferAllocator instance get, so
allocateBuffer does not wait for initialization during app launch
critical path.

Impact: Large improvement in app launch latency for low core devices
 - ~70ms of improvement in our view based app launch
 - ~27ms of improvement in material3 compose base app launch

Test: manual built and flashed
Bug: 383612849
Flag: early_preload_gl_context
Change-Id: I580e31de1d3a9878cf102dfdcad39bfd64bf2c53

1 files changed, 8 insertions, 0 deletions

diff --git a/libs/hwui/Properties.cpp b/libs/hwui/Properties.cpp
index 064cac2a6fc6..7d01dfbb446f 100644
--- a/libs/hwui/Properties.cpp
+++ b/libs/hwui/Properties.cpp
@@ -54,6 +54,9 @@ constexpr bool resample_gainmap_regions() {
 constexpr bool query_global_priority() {
     return false;
 }
+constexpr bool early_preload_gl_context() {
+    return false;
+}
 }  // namespace hwui_flags
 #endif
 
@@ -291,5 +294,10 @@ bool Properties::resampleGainmapRegions() {
     return sResampleGainmapRegions;
 }
 
+bool Properties::earlyPreloadGlContext() {
+    return base::GetBoolProperty(PROPERTY_EARLY_PRELOAD_GL_CONTEXT,
+                                 hwui_flags::early_preload_gl_context());
+}
+
 }  // namespace uirenderer
 }  // namespace android